Of course it would have been easier to simply use the certification tab again, as that one DOES actually include the compatibility for OBIEE with Office:

(click to enlarge)

Both ways are consistent in telling us:

Office 2013 is not yet supported by OBIEE (or by SmartView with OBIEE).

General Certification Information

So what did we learn by this? The compatibility matrix is always a way to find out about compatibility of products - next to a MOS search, the certification tab and the communities.The results might be more difficult to read and are hidden deep within technet and the documentation, but they do exist and provide answers.

So here are a few links that might come in handy when looking for certification information via platform matrices:

Links to all Fusion Middleware compatibility matrices can be found here